Fuel pump shield



1935- R. H. KENTFIELD FUEL PUMP SHIELD Filed April 5, 1934 2Sheets-Sheet l lnvenlor I E. H. ffer/fz /l/cd' Feb. 5, 1935. i R. H.KENTFIELD FUEL PUMP SHIELD 2 Sheets-Sheet 2 Filed April 3, 1954 lnvenlor22 .v /7", it? ff//d wwiibg Patented Feb. 5, 1935 i 1 1 990 125 UNITEDSTATESPATENT OFFICE FUEL PUMP SHIELD Roy. H. Kentfield, Gillespie, 11].Application April 3, 1934, Serial No. 718,860 1 Claim. (01. 103-205)This invention appertains to new and useful 14' of the guide 14, whichis of tubular construcimprovements in fuel pumps, the principal objecttion and extends into the crank case. Numeral being to provide a shieldfor conventional pumps 15 represents the movable cylinder of the pump toprevent vapor from the crank case reaching around which the usual spring16 is convoluted, the movable parts of the pump and causing them withone end bearing against a circumferentially 5 to corrode and stick.extending flange on the inner end of the cylin- During the course of'thefollowing specificader 15. tion, other important objects and advantagesof Numeral 18 represents the push rod which is the invention will becomeapparent to the reader. slidably disposed snugly through an opening 19 0In the drawings:--- in the resilient plug 20 which forms a shield andFigure 1 represents a side elevational view of snugly fits within theinner end of the guide 14, the pump, with the shield installed thereon.as in the manner clearly shown in Figure 2.

Figure 2 represents a fragmentary longitudinal Thus no oil can get tothe pump parts as this sectional view through a pump and crank case.plug 20 will exclude all vapors from entering the 5 Figure 3 representsa cross sectional view taken pump. substantially on line 3-3 of Figure2. While the foregoing specification sets forth Figure 4 represents aside elevational View of the invention in specific terms,it is to beunderthe shield guide. stood that numerous changes in the shape, sizeFigure 5 represents an end elevational view of and materials may beresorted to without departthe guide. ing from the spirit and scope ofthe invention 20 Figure 6 represents a perspective view of the asclaimed hereinafter. shield plug. Having thus described the invention,what is Referring to the drawings wherein like nuclaimed as new is:-merals designate like parts, it can be seen in An attachment for a fuelpump wherein the Figures 1 and 2, that numeral 5 represents the fuelpump is of the type extending into the crank 25 usual crank case andnumeral 6 represents the case and secured to the crank case by a flangeusual pump shaft having the eccentric circumferand bolts; a tubularshield for disposition into entially disposed groove 7 therein. thecrank case and provided with packing means Numeral 8 represents theusual shell portion at its inner end through which the usual pump of thevalve having the inlet 9 and the outlet 10, push rod can snugly operate,and a flange at the 30 the same being connected to the neck 11 whichouter end of the shield for supporting the shield, is flanged, as at 12,and secured by screws 13 to said flange of the shield being interposedbetween the crank case 5. the securing flange of the pump and the crankInterposed between the flange 12 and the crank case. b e case 5 is thecircumferentially extending flange ROY H. KENTFIELD. 35

